Many articles and a lot of professional literature focus, quite logically, on persuading the prospect to purchase the product you're offering. Many business people, however, keep on selling even when the prospect has already been convinced to accept the offer. In the end, they might even have a negative impact on the prospect's decision due to pressuring them unnecessarily. It's very important to know when the selling is over and the only thing left to do is sign the contract. Here are four signals on the part of the client that will help you recognize the moment.